hefty

?

非常大的（形容詞）

(adjective) Very large in size or weight

EXAMPLE: If the sales representative meets his annual sales goal, he will receive a hefty bonus equal to nearly one third of his salary.

如果銷售代表年度銷售額達標，他將獲得數額將近其薪酬三分之一的豐厚獎金。

to judge a book by its cover?

以貌取人?

To make the mistake of being fooled by appearances?

EXAMPLE: The short young man who wanted a job didn't look very intelligent, but I didn't want to judge a book by its cover, so I asked him some questions and soon realized he was very bright.

這位想找工作的年青人看上去不是個聰明人，但我不想以貌取人，所以問了他一些問題，結果我很快發現他非常優秀。